INSPECTION OF COMMERCIAL FERTILIZERS 7 



(a) Tonnage of Mixed Fertilizers. 



Complete Fertilizers. 



11,. per cent or more of Available Plant Food (Nitrogen, Available Phosphoric Acid 

 and Potash). 



Less than H per cent of Available Plant Food (^Nitrogen, Available Phosphoric 

 Acid and Potash). 



5-3-5 

 4-1-8 

 4-3-5 

 4-1.12- 



143 



17 



6.58-4-2 



5-6-2 



Miscellaneous 



Superphosphates with Potash. 



^Grade is expressed in terms of nitrogen, available phoaphoric acid, and potash. 



